A short while ago a mark appeared on my old, trusty X-Pro1 sensor. For all intents it looked like a hair, which, I could not blow it away, nor brush it off nor swab it off and I came to the conclusion that it was under the sensor front glass. The camera went away to Fuji, who dutifully cleaned the sensor and lo and behold, the mark had gone...and I lived happily ever after until this week when another similar mark appeared. It won't budge either. I am curious if anyone else has had a similar problem as I am getting to the stage whether it may be a case of throwing good money after bad and it's time to treat myself to a new camera.